Vaccine efficacy against Ontario isolates of infectious bronchitis virus.

@article{Grgi2009VaccineEA,
  title={Vaccine efficacy against Ontario isolates of infectious bronchitis virus.},
  author={Helena Grgi{\'c} and D. B. Hunter and Peter Hunton and {\'E}va {\'E} Nagy},
  journal={Canadian journal of veterinary research = Revue canadienne de recherche veterinaire},
  year={2009},
  volume={73 3},
  pages={212-6}
}
Infectious bronchitis (IB) is an economically important viral disease with worldwide distribution. Every country with an intensive poultry industry has infectious bronchitis virus (IBV). The virus rapidly spreads from bird to bird through horizontal transmission by aerosol or ingestion. Sentinel bird studies were carried out in southern Ontario and IBV has been isolated from layer flocks. Genetic analysis of the S1 region of the strains showed that they were not vaccine related. The… CONTINUE READING

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